Infiniti I35 (A33). Manual — part 323
4
DETECT MALFUNCTIONING PART
Check the following.
I
Harness connectors F66, M229
I
Harness for open or short between combination meter and ECM
©
Repair open circuit or short to ground or short to power in harness or connectors.
5
CHECK INTERMITTENT INCIDENT
Refer to “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-152.
©
INSPECTION END
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P1574 ASCD VEHICLE SPEED SENSOR
Diagnostic Procedure (Cont’d)
EC-633
SAT644J
Component Description
NHEC1134
When the gear position is P or N, park/neutral position (PNP)
switch is ON.
ECM detects the position because the continuity of the line (the ON
signal) exists.
The park/neutral position (PNP) switch assembly also includes a
transmission range switch to detect selector lever position.
CONSULT-II Reference Value in Data Monitor
Mode
NHEC1135
Specification data are reference values.
MONITOR ITEM
CONDITION
SPECIFICATION
P/N POSI SW
I
Ignition switch: ON
Shift lever: P or N
ON
Except above
OFF
On Board Diagnosis Logic
NHEC1137
DTC No.
Trouble diagnosis
name
DTC Detecting Condition
Possible Cause
P1706
1706
Park/Neutral position
switch
The signal of the park/neutral position (PNP)
switch is not changed in the process of engine
starting and driving.
I
Harness or connectors
[The park/neutral position (PNP)
switch circuit is open or shorted.]
I
Park/neutral position (PNP) switch
DTC Confirmation Procedure
NHEC1138
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If DTC Confirmation Procedure has been previously conducted,
always turn ignition switch OFF and wait at least 10 seconds before
conducting the next test.
DTC P1706 PNP SWITCH
Component Description
EC-634
SEF212Y
SEF213Y
WITH CONSULT-II
=NHEC1138S01
1)
Turn ignition switch ON.
2)
Select “P/N POSI SW” in “DATA MONITOR” mode with CON-
SULT-II. Then check the “P/N POSI SW” signal under the fol-
lowing conditions.
Position (Selector lever)
Known-good signal
“N” and “P” position
ON
Except the above position
OFF
If NG, go to “Diagnostic Procedure”, EC-637.
If OK, go to following step.
3)
Select “DATA MONITOR” mode with CONSULT-II.
4)
Start engine and warm it up to normal operating temperature.
5)
Maintain the following conditions for at least 60 consecutive
seconds.
ENG SPEED
More than 1,400 rpm
COOLAN TEMP/S
More than 70°C (158°F)
B/FUEL SCHDL
More than 2 msec
VHCL SPEED SE
More than 65 km/h (40 MPH)
Selector lever
Suitable position
6)
If 1st trip DTC is detected, go to “Diagnostic Procedure”,
EC-637.
SEF359X
Overall Function Check
NHEC1139
Use this procedure to check the overall function of the park/neutral
position (PNP) switch circuit. During this check, a 1st trip DTC
might not be confirmed.
WITH GST
NHEC1139S01
1)
Turn ignition switch ON.
2)
Check voltage between ECM terminal 44 and body ground
under the following conditions.
Condition (Gear position)
Voltage V (Known-good data)
“P” and “N” position
Approx. 0
Except the above position
Battery voltage
3)
If NG, go to “Diagnostic Procedure”, EC-637.
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P1706 PNP SWITCH
DTC Confirmation Procedure (Cont’d)
EC-635
Wiring Diagram
NHEC1140
MEC369E
SEF635XI
DTC P1706 PNP SWITCH
Wiring Diagram
EC-636
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст